private void GetInterfacesInternal()
{
IntPtr punk = IntPtr.Zero;
IntPtr pfactory = IntPtr.Zero;
Guid IID_IUnknown = COMInterfaceEntry.IID_IUnknown;
int hr = 0;
if (_winrt_component)
{
hr = COMUtilities.RoGetActivationFactory(_activatable_classid, ref IID_IUnknown, out pfactory);
}
else
{
hr = COMUtilities.CoGetClassObject(ref _clsid, _clsctx, null, ref IID_IUnknown, out pfactory);
}
// If we can't get class object, no chance we'll get object.
if (hr != 0)
{
throw new Win32Exception(hr);
}
if (_winrt_component)
{
hr = COMUtilities.RoActivateInstance(_activatable_classid, out punk);
}
else
{
hr = COMUtilities.CoCreateInstance(ref _clsid, IntPtr.Zero, _clsctx,
ref IID_IUnknown, out punk);
}
if (hr != 0)
{
punk = IntPtr.Zero;
}
try
{
Dictionary <IntPtr, string> module_names = new Dictionary <IntPtr, string>();
QueryInterface(punk, COMInterfaceEntry.IID_IMarshal, module_names, _interfaces);
QueryInterface(pfactory, COMInterfaceEntry.IID_IMarshal, module_names, _factory_interfaces);
QueryInterface(punk, COMInterfaceEntry.IID_IPSFactoryBuffer, module_names, _interfaces);
QueryInterface(pfactory, COMInterfaceEntry.IID_IPSFactoryBuffer, module_names, _factory_interfaces);
var actctx = ActivationContext.FromProcess();
if (actctx != null)
{
foreach (var intf in actctx.ComInterfaces)
{
QueryInterface(punk, intf.Iid, module_names, _interfaces);
QueryInterface(pfactory, intf.Iid, module_names, _factory_interfaces);
}
}
using (RegistryKey interface_key = Registry.ClassesRoot.OpenSubKey("Interface"))
{
foreach (string iid_string in interface_key.GetSubKeyNames())
{
Guid iid;
if (Guid.TryParse(iid_string, out iid))
{
QueryInterface(punk, iid, module_names, _interfaces);
QueryInterface(pfactory, iid, module_names, _factory_interfaces);
}
}
}
QueryInspectableInterfaces(punk, module_names, _interfaces);
QueryInspectableInterfaces(pfactory, module_names, _factory_interfaces);
}
finally
{
if (pfactory != IntPtr.Zero)
{
Marshal.Release(pfactory);
}
if (punk != IntPtr.Zero)
{
Marshal.Release(punk);
}
}
}